Re: [alsa-devel] No sound from Mac Pro headphone port

15 May 2015

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You will need to provide more specific instructions on what you want. I
do not read code.
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https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
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Bingo: the pin-outs are very incorrect.

This is the (original) tech specs of the machine.

https://support.apple.com/kb/SP506?viewlocale=en_US&locale=en_US

Note:

1 x internal speaker
1 x FRONT headphone port

Refer to user manual ,
Headphone Jack
Connect headphones, including Apple Earphone with remote and mic through
the headphone mini jack
Is node 0x18  headset mic ?
need specific sequence number and parser_flags
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...
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+#define HDA_PINCFG_HEADSET_MIC   (1 << 2) /* Try to find headset mic;
mark seq number as 0xc to trigger */
1 x REAR line out port

1 x REAR line in port
1 x REAR optical TOSLINK out port
1 x REAR optical TOSLINK in port

The machine does not have a built-in mic port.

you need to use hdajacksensetest to verify hp, line out , line in jacks
are node 0x19, 0x14 and 0x1a by plug and unplug those jacks
clear bit 8 of pin default of Line Out Jack if it return correct jack
state
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         Linux 4. Mac Pro 2009. ACL889A codec.

         No sound from headphone port. Seems to detect plug / unplug

OK.
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         Works OK when machine booted to OS X or Windows 7.

         Have found several bug repors on similar issues with Mac
    laptops but
         no fixes.

         Have written e-mail with David Henningsson on problem but
    unable to
         find a solution.

         ALSA-info output:

http://www.alsa-project.org/db/?f=1dc7146eb34af5ad307d029868f775fac5e2764e
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    Do your macpro spec support 5.1 ?

    Simple mixer control 'Channel Mode',0
        Capabilities: enum
        Items: '2ch' '4ch' '6ch'
        Item0: '2ch'

Channel mode is created when there are three or more jacks at same location
Use hdajackretask to change location of HP and Mic from Ext Rear to Ext
Front
Advanced override and set as boot default
http://git.alsa-project.org/?p=alsa-tools.git;a=blob;f=hdajackretask/README;...
http://voices.canonical.com/david.henningsson/2011/11/29/turn-your-mic-jack-...
http://git.alsa-project.org/?p=alsa-tools.git;a=tree;f=hdajacksensetest;hb=H...
Use hdajacksensetest -a to verify line out support jack detect
clear MISC = NO_PRESENCE bit 8 of pin default of Line out by hdajackretask
Pin Default 0x01010050: [Jack] Line Out at Ext Rear
    Conn = 1/8, Color = Unknown
    DefAssociation = 0x5, Sequence = 0x0
Most likely need vendor coefficient to support mono  mic of apple earphones
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    Pin default seem incorrect

    1) Headphone at ext Rear
    2) Line Out does not support jack detection
    3) Mic jack ????

    /sys/class/sound/hwC0D0/init_pin_configs:
    0x14 0x01010150
    0x15 0x400000f0
    0x16 0x400000f0
    0x17 0x400000f0
    0x18 0x01a19070
    0x19 0x01214040
    0x1a 0x01813010
    0x1b 0x90100130
    0x1c 0x400000f0
    0x1d 0x400000f0
    0x1e 0x0145e160
    0x1f 0x01c5e120

    /sys/class/sound/hwC0D0/driver_pin_configs:

    [    4.057250] sound hdaudioC0D0: ALC889A: SKU not ready

0x400000f0
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    [    4.057633] sound hdaudioC0D0: autoconfig for ALC889A:
    line_outs=1
    (0x14/0x0/0x0/0x0/0x0) type:line
    [    4.057636] sound hdaudioC0D0:    speaker_outs=1
    (0x1b/0x0/0x0/0x0/0x0)
    [    4.057638] sound hdaudioC0D0:    hp_outs=1
    (0x19/0x0/0x0/0x0/0x0)
    [    4.057639] sound hdaudioC0D0:    mono: mono_out=0x0
    [    4.057641] sound hdaudioC0D0:    dig-out=0x1e/0x0
    [    4.057642] sound hdaudioC0D0:    inputs:
    [    4.057645] sound hdaudioC0D0:      Mic=0x18
    [    4.057646] sound hdaudioC0D0:      Line=0x1a
    [    4.057648] sound hdaudioC0D0:    dig-in=0x1f

Re: [alsa-devel] No sound from Mac Pro headphone port

Raymond Yau